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An Iodine Flask is essential an Erlenmeyer Flask with a stopper used for the wet chemical analysis "Iodine Determination" . This analysis is typically performed on fatty acids, oils and shellac varnishes.
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∙ 15y ago
Wiki User
∙ 12y agoThe iodine flask is an Erlenmeyer flask with a stopper; it is used for the iodine determinastion.
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What process causes iodine vapor to collect in a flask of solid iodine?
Procrastinator, you should have started your Enrichment earlier.
What is Iodine value for Activated Carbon?
Iodine Value of Activated Carbon Apparatus: Volumetric flask, conical flask, beaker, burette, pipette, filter paper Reagents: * 0.1N Iodine solution ( 40 gm KI in 1 Ltr of Distilled water ). * 0.05N Sodium Thiosulphate solution (12.5 gm Na2S2O3.5H2O in 1 Ltr Distilled water) * 1% Starch solution * Activated carbon Procedure: I Standardisation of Iodine solution * Take 10c.c of 0.1N Iodine solution in conical flask. * Add 2 drops of Starch solution. * The pale yellow colour of Iodine Soln turns Blue. * Titrate with 0.05 N Sodium Thiosulphate till it becomes Colourless. * Burette reading corresponds to blank reading.(B) II * Weigh very accurately 0.2 gm of Activated carbon * Introduce it into the Iodine flask which should be completely dry * Add 40cc of 0.1N Iodine solution * Shake the flask for 4 minutes and filter it * Collect the filterate in a dry flask and Titrate 10cc of the filtrate against Standard Sodium thiosulphate solution using starch as indicator * Burette reading corresponds to (A) Calculations: Iodine value: C x Conversion factor; mg/gm Factor:Mol wt. of iodine (127) x normality of iodine x 40 / Wt. of carbon x Blank reading C=B-A This is dry basis test From Ishan Udyog Bhilai
How do you obtain powdered iodine from liquid iodine?
Put the iodine tincture in a shallow glass dish; let it evaporate at room temperature; what's left behind is a thin film of crystalline iodine that you can scrape off - note: iodine like chlorine is very reactive; that's why it's used as a germicide - were you to put a candle under the dish you would see the iodine sublimate (go directly from a solid to a brownish gas). Iodine does not come in a powder form, but you can get USP (United Stated Pharmaceutical Grade) Iodine crystals at any pharmacy with a doctor's prescription.
Preparation of 0.1n iodine solution?
According to Kodak: For a 0.1 Normal (0.1N) solution of iodine (I2), in 1 L volume flask, dissolve 40 g potassium iodide in 25 mL water. Next, add 12.7 g iodine (I2) and dilute to 1 L. Note that a 0.1N solution is not the same as a 0.1M solution. For iodine 0.1N is 0.05M.
What cleaning products use iodine?
wot cleaning product is iodine used in
What process causes iodine vapor to collect in a flask of solid iodine?
Procrastinator, you should have started your Enrichment earlier.
What is Iodine value for Activated Carbon?
Iodine Value of Activated Carbon Apparatus: Volumetric flask, conical flask, beaker, burette, pipette, filter paper Reagents: * 0.1N Iodine solution ( 40 gm KI in 1 Ltr of Distilled water ). * 0.05N Sodium Thiosulphate solution (12.5 gm Na2S2O3.5H2O in 1 Ltr Distilled water) * 1% Starch solution * Activated carbon Procedure: I Standardisation of Iodine solution * Take 10c.c of 0.1N Iodine solution in conical flask. * Add 2 drops of Starch solution. * The pale yellow colour of Iodine Soln turns Blue. * Titrate with 0.05 N Sodium Thiosulphate till it becomes Colourless. * Burette reading corresponds to blank reading.(B) II * Weigh very accurately 0.2 gm of Activated carbon * Introduce it into the Iodine flask which should be completely dry * Add 40cc of 0.1N Iodine solution * Shake the flask for 4 minutes and filter it * Collect the filterate in a dry flask and Titrate 10cc of the filtrate against Standard Sodium thiosulphate solution using starch as indicator * Burette reading corresponds to (A) Calculations: Iodine value: C x Conversion factor; mg/gm Factor:Mol wt. of iodine (127) x normality of iodine x 40 / Wt. of carbon x Blank reading C=B-A This is dry basis test From Ishan Udyog Bhilai
Do you use titrant in conical flask?
yes we use titrant in the conical flask ,this is because titrant is a solution we use in burrete for titration in this process we titrant the solution in the conical flask along with an indicator
How do you obtain powdered iodine from liquid iodine?
Put the iodine tincture in a shallow glass dish; let it evaporate at room temperature; what's left behind is a thin film of crystalline iodine that you can scrape off - note: iodine like chlorine is very reactive; that's why it's used as a germicide - were you to put a candle under the dish you would see the iodine sublimate (go directly from a solid to a brownish gas). Iodine does not come in a powder form, but you can get USP (United Stated Pharmaceutical Grade) Iodine crystals at any pharmacy with a doctor's prescription.
What can you use to secure a flask from falling?
A rubber band can be used to secure a flask from falling.
How can you use the Erlenmeyer Flask in a sentence?
An Erlenmeyer Flask is commonly used for chemistry experiements.
What is the use of the filterring flask?
The filtering flask is used to collect the solution resulted from a filtration.
Use of flask?
A flask is a container for liquids. It is similar to a bottle.
What is the round bottom flask use for in chemistry?
The round bottom flask is used frequently for distillation.
What is the use of the flask in the laboratory?
Laboratory flask of different types are designed to contain liquids in larger volumes.
What is the use of a flask?
use to hold liquids ang chemicals
How do you use a flat bottomed flask?
nothing
